Oil-cup



W. G. GOLES.

OIL CUP.

APPLICATION FILED DEC. Is. I9I9.

Patented Apr.27, 1920.

w MNM.

ST FFICE.

fd'. CLES, OE MADISON, WISCONSIN, ASSIGOR T0 MDISON KDP COIEtEORA- yTIDN, F MADISON, WISCONSIN, A CRIPOB/ATION 03? WESGONSIN.

Specicatlon of Letters Patent.

atented Apr. 27, 1920.

l Application led December 16, 1919. Serial No. 845,217.

To all 'whom t may concern:

Be it known that I, Winrnnn G. Gonne, a citizen. of the United States,residing at Madison, in the county of Dane and State of lVisconsin, haveinvented certain new and useful Improvements in Oil-Cups, of which thefollowing is a speciiication.

lhis invention pertains to oil cups and in certain particulars is animprovement upon that set forth and claimed in Letters Patent No.l.262,981, dated April 16, 1918.

The present structure, in the` former case, partakes of the form of anoil-cup in which there'is mounted a pump or plunger which, whenactuated, serves to force the lubricant past a valve and to a pointwhere it is to be utilized.

The object of the presentinvention is simplify the structure and toprovidemeans whereby the leakage of lubricant between the cap or closureof the body isprevented.

The structure is illustrated inthe annexed drawings, wherein,-

Figure 1 is a vertical sectional View of the cup` with. the pistonlowered; and l 1ig'. 2 a sectional elevation showing the piston raisedpreparatory to forcing a charge of lubricant from the cup.

The cup or reservoir is designated by 1 and is provided with a reducedcylindrical neck portion 2i from which projects a further extension 3which is reduced and eX- teriorly threaded, the lower end thereof beinginturned and provided with a central discharge opening il. The upper endof the cup' .is smaller in diameter than the 4body of the cup,as at 5,and is exterior'ly threaded, the threaded portion merging into the bodyAforming a seat 6.'

The cap or closure is designated by 7 and is provided at its lower endwith an outwardly Haring lip or skirt 85 the inner ,tace of which, whenthe cap is screwed down,

`makes a tight fit with the underlying face 6,

the shirt and face forming, in effect, a seat and valve. Thisarrangement prevents any leakage between the parts and the entrance ofwater into and through the joint-L rlhe cap isprovided with a centralhuh -9 through which the stem l0 passes. the stem at its lower endcarrying a piston or plunger 11. 'The stem at its upper end has attachedthereto an operating lhandle 12', and a spring 1.3 encircling the stemand bearing at its ends on washers le and i5 tends to force the piatends upwardly ,within the reservoir and is providedl with lateral ports18 which open into the reservoir immediately adjacent the lowerdownwardly inclined wall 19 thereof.

The. lower end or" the cylinder is countervbored and internally threadedand a stop collar 20 for the pistoh is screwed therein.

-Said collar also provides a seat at its lower end against which bearsYa non-return valve 21, the valve being normally held to its seat by aspring 22, the lower end of' which bears against the inturned end ofthethreaded extension 3.

In'operation the reservoir is filled with lubricant and the cap screwedto place, the outturned lip 8 taking a fair bearing against the seat 6and producing a4 tight joint. Upon an outward movement of the handle 12,piston 11 is raised and the lubricant passes into the cylinder throughports 18, filling the same. The handle is then released or forced inwardmanually and the descending piston forces the lubricant from thecylinder through collar 20 unseating the valve 21 and is finallydischarged through port l to the part to be lubricated.

The construction as above outlined is ,at

`once simple and strong and may be readily produced. lt affords aminimum number of exposed joints and hence minimizes leakage and may bereadilv kept clean.

1. In a lubricator, the combination of a cup or reservoir formed from asingle piece enl inclined seat formed .adjacent its upper end, said endbeing externally threaded; a4 cap y therefor, said cap having anoutwardly fiar* ing lip cooperating with said. Seat; and means mounted.within the reservoir or forcing lubricant therefrom.

- diameter with an inclined seat formed be# cup or reservoir formed.from

Aof metal In-a lnbricator, the combination of a drawn to form and.providing a body portion, an Aupper portion ofismaller tweenthe bodyand vupper portion, and relatively small cylindrical portion extendingdownwardly from the body; a Combined cylinder andpiston guide the lowerpart whereof `is seated and held-within the cylindrical-portion; apisbonlmc-unted forreciprot-ation therein; and .a cap having anoutwardly Haring-.lip at its lower end adapted when the cap is screwedin. place to Contact the inclined seat aforesaid and tomake vtight ittherewith.

l. :in a lubricator, the, combination of a 'cup or reservoir formed froma single piece of metal drawn to form and providing a body poi-tion, anrtpper portion'of smaller cylinder and piston guide the lower diameterwith an inclined seat formed be tween the why .ind upper portion, and arelatively email cylindrical portion extend ingdownwardly from the/body;a combined part whereof is seated-and held `within the cylindricalportion; a pistonmounted for reciprocation therein; a collar mounted inthe .Y lower end of said'cylinder member; a valve;

. member; an

a single piece a spring ur ing Said. Valve against f said t a'cap havingan outwardly'- V.

flaring lip at its lower end adapted when thecap /i'sJscrewedxin placetol Contact thev inclined seat aforesaid and te make a tightittherewith.l

5. In a lubricator, the combination'of a cup ver-reservoir formed .from`a single piece of metal' drawn to form, said member presentinganupperfexternally threaded section, anl annular `outwardly incliningseat, a body portion proper, aninwardiy and downwardly inclining bottom,a relatively narrow cylindrical shaped section extend-l ingdownwardlyfrom the bottom and an externally threaded still smaller projection; aninternally threaded cap having an outwardly flaring lip adapted tocontact the seat aforesaid; a combined piston guide and cylinder,thejlower end whereof makesA a 575v driving fit ywithin the cylindricalshaped sec-v tion; of the cup, said member having lateral "wrLFREIo e.ooLEs. i

signed my? close the opening 65

